Edgerouter Pro + USB LTE modem

I am trying to figure out how to configure Edgerouter Pro as double uplink router. My problem is that I can't configure my LTE modem (ZTE MF823), to work with it. I just can't debug it, cause none of the udev tools works. Has anyone successed at this?

Re: Edgerouter Pro + USB LTE modem

@UBNT-ancheng Could you let us know if you guys have tried to use anything with the ER8 via usb? I'm looking to do the same thing but I'm concerned my device won't work (Netgear/Sierra AC770S). I'd also be interested to know if this would work via a Phone tether, as I could just move my sim over to an iphone or android device and tether via usb.

Re: Edgerouter Pro + USB LTE modem

I tried some storage devices a while back and they seemed to work. For LTE modems I've added the kernel modules and config options that were mentioned earlier in the thread, but haven't tested with an actual device and not sure if anyone has tried it yet.

Re: Edgerouter Pro + USB LTE modem

Thanks for taking the time to look into this. Just to confirm, could you clarify if you mean this is not working on the EdgeRouter Pro? Also do you mean the "minimal changes outside the standard config options" is not possible on the EdgeRouter Pro? Just want to confirm these points since either of them would probably mean some bug somewhere that should be fixed. Thanks again!

Actually the wirelessmodem code was never took out, it is right there in the CLI ("set interfaces wirelessmodem ..." etc.) so it should be easy to try (although most likely changes would be needed to bring it up to date).

Actually the wirelessmodem code was never took out, it is right there in the CLI ("set interfaces wirelessmodem ..." etc.) so it should be easy to try (although most likely changes would be needed to bring it up to date).

So if I plug in the LTE modem I should be able to configure it with out loading any modules? I don't have the cdc_ether on my router (ERLite with 1.70 firmware). I did test the set command from a previous message.

Re: Edgerouter Pro + USB LTE modem

I believer the last time I tried it on the EdgeRouter Pro, it was missing a kernel module.

Just checked, and the 1.7.0 firmware does include the cdc_ether kernel module, so I guess there was another module missing.

It also depends on which LTE USB stick you have. Some LTE sticks start in 'cd-rom' mode so Windows can install the correct drivers and a usb_modeswitch command is needed before it is switched to 'virtual ethernet device' mode.

I don't know if the usb stick I currently use starts in 'virtual ethernet' mode, or it switches from 'cd-rom' to 'virtual ethernet' mode after a timeout, or that the usb_modeswitch is correctly installed and configured on the USG-Pro.

A few months back I already tried the wirelessmodem config option, but I believe that only works with serial based modems (using ppp to setup a connection).

If that code could be 'enhanced' to support usb modeswitch based, virtual ethernet, LTE USB sticks, you have a future proof way of easily adding LTE support of several brands

Tomorrow I'm back in the office and I'll try the Edgerouter and USG-Pro again.